All the movies with racial content receive low ratings on IMDb before their releases, meaning that racists keep using the site to express their racism without even seeing the movies. I don't believe that all the voters were in Cannes to see BlacKkKlansman, which was well-received by critics and audience alike. I think that you guys should review your rating policy, opening the votes only when the films go to general release. I saw that you did this with Solo: A Star Wars Story, after the haters tried to keep that movie with low ratings before its release. But you should do the same with all movies, specially when there is delicate themes, such as racism, involved.